1gyn: Difference between revisions

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[[Image:1gyn.jpg|left|200px]]


{{Structure
==Class II fructose 1,6-bisphosphate aldolase with Cadmium (not Zinc) in the active site==
|PDB= 1gyn |SIZE=350|CAPTION= <scene name='initialview01'>1gyn</scene>, resolution 2.00&Aring;
<StructureSection load='1gyn' size='340' side='right'caption='[[1gyn]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=CD:CADMIUM ION'>CD</scene>
<table><tr><td colspan='2'>[[1gyn]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GYN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1GYN FirstGlance]. <br>
|ACTIVITY= [http://en.wikipedia.org/wiki/Fructose-bisphosphate_aldolase Fructose-bisphosphate aldolase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.1.2.13 4.1.2.13]
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2&#8491;</td></tr>
|GENE=
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CD:CADMIUM+ION'>CD</scene></td></tr>
}}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1gyn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gyn OCA], [https://pdbe.org/1gyn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1gyn RCSB], [https://www.ebi.ac.uk/pdbsum/1gyn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1gyn ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/ALF_ECOLI ALF_ECOLI] Catalyzes the aldol condensation of dihydroxyacetone phosphate (DHAP or glycerone-phosphate) with glyceraldehyde 3-phosphate (G3P) to form fructose 1,6-bisphosphate (FBP) in gluconeogenesis and the reverse reaction in glycolysis.<ref>PMID:10712619</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gy/1gyn_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1gyn ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Previously determined crystal structures of the zinc enzyme Escherichia coli class II fructose-1,6-bisphosphate aldolase display good agreement for the protein structure but a differing metal-ion organization in the active site. The structure of the enzyme with Cd(2+) in place of Zn(2+) has now been determined to 2.0 A resolution to facilitate cation identification. The protein structure was essentially identical to other structures and five Cd(2+) positions were identified. Two of the cations are at the active site; one corresponds to the catalytic ion and the other provides a structural contribution. These Cd(2+) sites are equivalent to two Zn(2+) ions observed when the enzyme is complexed with a transition-state mimic and confirm our assignment of the roles played by these ions.


'''CLASS II FRUCTOSE 1,6-BISPHOSPHATE ALDOLASE WITH CADMIUM (NOT ZINC) IN THE ACTIVE SITE'''
The organization of divalent cations in the active site of cadmium Escherichia coli fructose-1,6-bisphosphate aldolase.,Hall DR, Kemp LE, Leonard GA, Marshall K, Berry A, Hunter WN Acta Crystallogr D Biol Crystallogr. 2003 Mar;59(Pt 3):611-4. Epub 2003, Feb 21. PMID:12595741<ref>PMID:12595741</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1gyn" style="background-color:#fffaf0;"></div>


==Overview==
==See Also==
Previously determined crystal structures of the zinc enzyme Escherichia coli class II fructose-1,6-bisphosphate aldolase display good agreement for the protein structure but a differing metal-ion organization in the active site. The structure of the enzyme with Cd(2+) in place of Zn(2+) has now been determined to 2.0 A resolution to facilitate cation identification. The protein structure was essentially identical to other structures and five Cd(2+) positions were identified. Two of the cations are at the active site; one corresponds to the catalytic ion and the other provides a structural contribution. These Cd(2+) sites are equivalent to two Zn(2+) ions observed when the enzyme is complexed with a transition-state mimic and confirm our assignment of the roles played by these ions.
*[[Aldolase 3D structures|Aldolase 3D structures]]
 
== References ==
==About this Structure==
<references/>
1GYN is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GYN OCA].
__TOC__
 
</StructureSection>
==Reference==
The organization of divalent cations in the active site of cadmium Escherichia coli fructose-1,6-bisphosphate aldolase., Hall DR, Kemp LE, Leonard GA, Marshall K, Berry A, Hunter WN, Acta Crystallogr D Biol Crystallogr. 2003 Mar;59(Pt 3):611-4. Epub 2003, Feb 21. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12595741 12595741]
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Fructose-bisphosphate aldolase]]
[[Category: Large Structures]]
[[Category: Single protein]]
[[Category: Berry A]]
[[Category: Berry, A.]]
[[Category: Hall DR]]
[[Category: Hall, D R.]]
[[Category: Hunter WN]]
[[Category: Hunter, W N.]]
[[Category: Kemp LE]]
[[Category: Kemp, L E.]]
[[Category: Leonard GA]]
[[Category: Leonard, G A.]]
[[Category: CD]]
[[Category: aldolase]]
[[Category: cadmium]]
[[Category: lyase]]
 
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